Home / 12,763,635-19,145,619.20-4,243,971.48

Finding the Fourth Proportional to 12,763,635, 19,145,619.20 and 4,243,971.48

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Solution

The fourth proportional to 12,763,635, 19,145,619.20 and 4,243,971.48 is: 6,366,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763,635 : 19,145,619.20 = 4,243,971.48 : x
  2. Step 2: Convert to fraction form
    12,763,635/19,145,619.20 = 4,243,971.48/x
  3. Step 3: Cross multiply
    12,763,635x = 19,145,619.20 × 4,243,971.48
  4. Step 4: Simplify right side
    12,763,635x = 81,253,461,851,740.42
  5. Step 5: Solve for x
    x = 81,253,461,851,740.42/12,763,635
  6. Step 6: Final answer
    x = 6,366,012.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.